Finding the Fourth Proportional to 628,832,988.63, 867,792,889.26 and 360,887,454.68
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Solution
The fourth proportional to 628,832,988.63, 867,792,889.26 and 360,887,454.68 is: 498,026,618.60
Step by Step Solution
- Step 1: Write the proportion equation
628,832,988.63 : 867,792,889.26 = 360,887,454.68 : x - Step 2: Convert to fraction form
628,832,988.63/867,792,889.26 = 360,887,454.68/x - Step 3: Cross multiply
628,832,988.63x = 867,792,889.26 × 360,887,454.68 - Step 4: Simplify right side
628,832,988.63x = 313,175,566,990,105,536 - Step 5: Solve for x
x = 313,175,566,990,105,536/628,832,988.63 - Step 6: Final answer
x = 498,026,618.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.